Hydrocarbon-vapor burner.



PATENTED MAY 19, 1908.

T. J. GORNISH.

1 HYDROGARBON VAPOR BURNER.

7 APPLICATION FILED DEC. 9. 1904.

THOMAS J'. OORNISH, OF LOS ANGELES, CALIFORNIA.

HYDROCARBON-VAPOR BURNER.

Specification of Letters Patent.

Patented May 19, 1908.

Application filed. December 9,1904. Serial No. 236,104.

T 0 all whom it may concern:

Be it known that I, THOMAS J. CORNISII, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented certain Improvements in Hydrocarbon-Vapor Burners, of which the following is a specification.

This invention relates to hydrocarbon vapor burners, and particularly to such devices for use in bake-ovens in bakeries, and for use with distillate manufactured from crude hydrocarbon oils, such for instance, as the California oils containing more or less asphaltum.

An object of this invention is to provide superior means for heating bake-ovens by the use of liquid fuel.

Other objects are simplicity of construction and operation, and the construction of a burner by which the heating of the oven throughout from side to side will be readily accomplished exactly as desired by the operator.

Another object is to provide an improved simple form of burner for use in lire-boxes for heating the same with vapor generated by such burner, and to produce complete combustion from liquid hydrocarbons, especially from those above referred to.

The invention comprises a generating chamber formed of a set of pipes arranged in a plane, burners connected with said set of pipes and having nozzle outlets which are elongated in a plane parallel with the plane of the set of pipes, the same being directed over the set of pipes, means being provided for supplying fuel to the set of pipes. Preferably, each burner is provided with an airmixer which is pivotally mounted so that it can be turned to direct the blaze in different courses relative to the generating chamber.

The invention also includes specific parts and combinations hereinafter described.

The accompanying drawings illustrate the invention;

Figure 1 is a perspective view of a portion of the interior of a bake-oven equipped with a burner embodying my invention. 2 is a detail view showing the burner tip and air-intermingling chamber in section.

1 indicates a bake-oven; 2, an oil-supply pipe; 3, a cut-off valve therefor; 1, a reducer; 5, 6, 7, 8, 9, 10, 11 and 12, parts constituting a generating chamber formed of a set of pipes and fittings lying in a common plane 13 designates caps at the end of the outlet members 6, 7, of the generating chamber.

1 1 designates nipples extending upward from the caps 13; 15 and 16 respectively designate the air mixer and burner-head which supply gas and air for the fire in the oven 1.

17 is the outlet or nozzle of the burnerhead 16.

18 is a needle for cleaning the outlet 17 in case it should become clogged.

19 is a horizontally flattened portion of the air mixer 15 provided with a horizontallyelongated outlet or slot 20 through which the burner-head discharges.

The air-mixer 15 is formed of an openended cylindrical air supply portion a within which the burner-head 16 extends axially to discharge through the outlet 20. The cylindrical portion a terminates at the di's charge end of the burner-head 16, and the air mixer extends forward therefrom in a tapering portion 1) which terminates in the horizonta ly flattened portion 19. The airmiXer 15 is pivotallysupported on the nipple 14 by means of the nuts 0, d.

21 designates a union for connecting and disconnecting the supply-pipe 2.

In practical operation, to start the burner in a cold oven, special fuel may be ignited in the oven to heat the generating chamber formed by the set of pipes 5, 6, 7, etc. Oil will then be turned on at the valve 3, and the same will flow into the middle section 5, and through the tees 10 and 11 to the lateral vapor sections 6, 7, of the generator, whence the vapor generated in the chamber 5, 6, 7, 10 and 11 will flow through the nipples 14 into the nozzle 16, out through the outlet 17 thereof, and through the horizontally elongated outlet 20, inducing a flow of air through 15 in the well-known manner of injector burners.

The special form of the air-mixer 15 consisting of the portions a, b and 19, causesa combination of air and vapor which is superior to any that I have been able to et by any other form of air-mixer. I regar it as a valuable feature that the air-mixer should be constructed with a cylindrical portion in which the nozzle head 16 is contained, said cylindrical portion terminating practically at the discharge end of the nozzlehead, and said air-mixer tapering thence and finally terminating in the flattened outlet 20. By this construction I am enabled to produce within the bake-oven a erfect combustion which heats the oven without soot or smoke. The air mixer 15 is formed as a tube having a substantially cylindrical opening extending from one side to the other thereof at the rear end so as to form an unobstructed air inlet.

While I have specially designed this burner for use in bake-ovens, I do not limit its application to any form of furnace;

After the burner is fully in operation, the attendant will ordinarily find it necessary in order to completely heat the bake-oven, to change the direction of the blaze from the flat nozzles, which may be accomplished by tapping the nozzles respectively on oneor the other side to turn the nozzles on the vertical pivots formed by the nipples 14.

The handle of needle 18 should be tapped to make the burner head 16 point in the same direction as the air mixer 15, after the latter has been turned toward one side or the other. The direction in which each nozzle oints can be varied considerably and the ame of the nozzle still be allowed to play over the pi e to which it is attached to vaporize the 05. By the ivotal arrangement shown the burner is a apted to apply the heat at whatever part of the bake-oven it may be necessary to apply it in order to heat the oven as desired.

In practical use, I find that a burner for heating a bake-oven twelve feet wide by fourteen feet long, should be constructed with the generating chamber in which the arranged in a plane, burners pivotally connected with said set of pipes and having parallel with the plane of the set of pipes, the same being directed over the set of pipes, and means for supplying fuel to the set of pipes.

nozzle outlets which are elongated in a plane 2. An air-mixer comprising a cylindrical portion, a tapered portion and a flattened portion, the same being open at both ends, a burner-head located in and terminating substantially at the end of the cylindrical portion and arranged to discharge into the tapering portion and through the flattened portion, and a nipple for supplying vapor to the burner-head, the air-mixer being pivoted on said nipple.

In testimony whereof, I have hereunto set my hand at Los Angeles, California this 2nd day of December 1904.

V THOMAS J. CORNISH.

In presence of WARREN E. LLOYD, FREDERICK S. LYON. 

